1. Which of the following has been confirmed on sugarcane genotypes?
A. Bacilliform virus
B. Cytomegalovirus
C. Varicella-zoster virus
D. Erythrovirus
2. The involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
A. 3-deoxyanthocyanidin
B. luteolinidin
C. apigeninidin
D. 5-0 apigeninidin
3. Human serum albumin has been synthesized by
A. transgenic potato and tobacco plants
B. transgenic maize plants
C. transgenic wheat plants
D. any of the above
4. Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of
A. Streptomyces avermitilis
B. B. thuringiensis
C. P. fluorescens
D. L. peruvianum
5. The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the
A. T-DNA
B. c-DNA
C. r-DNA
D. m-RNA
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